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559 lines
17 KiB
559 lines
17 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file crypto.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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* Crypto test functions.
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*/
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#include <random>
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#include <secp256k1/secp256k1.h>
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#include <libdevcore/Common.h>
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#include <libdevcore/RLP.h>
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#include <libdevcore/Log.h>
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#include <libethereum/Transaction.h>
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#include <boost/test/unit_test.hpp>
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#include <libdevcrypto/SHA3.h>
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#include <libdevcrypto/ECDHE.h>
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#include <libdevcrypto/CryptoPP.h>
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using namespace std;
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using namespace dev;
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using namespace dev::crypto;
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using namespace CryptoPP;
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BOOST_AUTO_TEST_SUITE(devcrypto)
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static Secp256k1 s_secp256k1;
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static CryptoPP::AutoSeededRandomPool s_rng;
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static CryptoPP::OID s_curveOID(CryptoPP::ASN1::secp256k1());
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static CryptoPP::DL_GroupParameters_EC<CryptoPP::ECP> s_params(s_curveOID);
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static CryptoPP::DL_GroupParameters_EC<CryptoPP::ECP>::EllipticCurve s_curve(s_params.GetCurve());
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BOOST_AUTO_TEST_CASE(emptySHA3Types)
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{
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h256 emptyListSHA3(fromHex("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"));
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BOOST_REQUIRE_EQUAL(emptyListSHA3, EmptyListSHA3);
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h256 emptySHA3(fromHex("c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"));
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BOOST_REQUIRE_EQUAL(emptySHA3, EmptySHA3);
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}
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BOOST_AUTO_TEST_CASE(cryptopp_patch)
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{
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KeyPair k = KeyPair::create();
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bytes io_text;
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s_secp256k1.decrypt(k.sec(), io_text);
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BOOST_REQUIRE_EQUAL(io_text.size(), 0);
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}
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BOOST_AUTO_TEST_CASE(verify_secert)
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{
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h256 empty;
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KeyPair kNot(empty);
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BOOST_REQUIRE(!kNot.address());
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KeyPair k(sha3(empty));
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BOOST_REQUIRE(k.address());
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}
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BOOST_AUTO_TEST_CASE(common_encrypt_decrypt)
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{
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string message("Now is the time for all good persons to come to the aid of humanity.");
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bytes m = asBytes(message);
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bytesConstRef bcr(&m);
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KeyPair k = KeyPair::create();
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bytes cipher;
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encrypt(k.pub(), bcr, cipher);
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BOOST_REQUIRE(cipher != asBytes(message) && cipher.size() > 0);
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bytes plain;
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decrypt(k.sec(), bytesConstRef(&cipher), plain);
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BOOST_REQUIRE(asString(plain) == message);
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BOOST_REQUIRE(plain == asBytes(message));
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}
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BOOST_AUTO_TEST_CASE(cryptopp_cryptopp_secp256k1libport)
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{
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secp256k1_start();
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// base secret
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Secret secret(sha3("privacy"));
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// we get ec params from signer
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ECDSA<ECP, SHA3_256>::Signer signer;
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// e := sha3(msg)
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bytes e(fromHex("0x01"));
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e.resize(32);
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int tests = 2;
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while (sha3(&e, &e), secret = sha3(secret.asBytes()), tests--)
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{
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KeyPair key(secret);
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Public pkey = key.pub();
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signer.AccessKey().Initialize(s_params, secretToExponent(secret));
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h256 he(sha3(e));
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Integer heInt(he.asBytes().data(), 32);
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h256 k(crypto::kdf(secret, he));
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Integer kInt(k.asBytes().data(), 32);
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kInt %= s_params.GetSubgroupOrder()-1;
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ECP::Point rp = s_params.ExponentiateBase(kInt);
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Integer const& q = s_params.GetGroupOrder();
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Integer r = s_params.ConvertElementToInteger(rp);
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Integer kInv = kInt.InverseMod(q);
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Integer s = (kInv * (Integer(secret.asBytes().data(), 32)*r + heInt)) % q;
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BOOST_REQUIRE(!!r && !!s);
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Signature sig;
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sig[64] = rp.y.IsOdd() ? 1 : 0;
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r.Encode(sig.data(), 32);
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s.Encode(sig.data() + 32, 32);
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Public p = dev::recover(sig, he);
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BOOST_REQUIRE(p == pkey);
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// verify w/cryptopp
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BOOST_REQUIRE(s_secp256k1.verify(pkey, sig, bytesConstRef(&e)));
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// verify with secp256k1lib
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byte encpub[65] = {0x04};
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memcpy(&encpub[1], pkey.data(), 64);
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byte dersig[72];
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size_t cssz = DSAConvertSignatureFormat(dersig, 72, DSA_DER, sig.data(), 64, DSA_P1363);
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BOOST_CHECK(cssz <= 72);
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BOOST_REQUIRE(1 == secp256k1_ecdsa_verify(he.data(), sizeof(he), dersig, cssz, encpub, 65));
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}
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}
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BOOST_AUTO_TEST_CASE(cryptopp_ecdsa_sipaseckp256k1)
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{
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secp256k1_start();
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// cryptopp integer encoding
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Integer nHex("f2ee15ea639b73fa3db9b34a245bdfa015c260c598b211bf05a1ecc4b3e3b4f2H");
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Integer nB(fromHex("f2ee15ea639b73fa3db9b34a245bdfa015c260c598b211bf05a1ecc4b3e3b4f2").data(), 32);
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BOOST_REQUIRE(nHex == nB);
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bytes sbytes(fromHex("0xFFFF"));
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Secret secret(sha3(sbytes));
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KeyPair key(secret);
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bytes m(1, 0xff);
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int tests = 2;
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while (m[0]++, tests--)
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{
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h256 hm(sha3(m));
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Integer hInt(hm.asBytes().data(), 32);
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h256 k(hm ^ key.sec());
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Integer kInt(k.asBytes().data(), 32);
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// raw sign w/cryptopp (doesn't pass through cryptopp hash filter)
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ECDSA<ECP, SHA3_256>::Signer signer;
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signer.AccessKey().Initialize(s_params, secretToExponent(key.sec()));
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Integer r, s;
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signer.RawSign(kInt, hInt, r, s);
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// verify cryptopp raw-signature w/cryptopp
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ECDSA<ECP, SHA3_256>::Verifier verifier;
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verifier.AccessKey().Initialize(s_params, publicToPoint(key.pub()));
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Signature sigppraw;
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r.Encode(sigppraw.data(), 32);
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s.Encode(sigppraw.data() + 32, 32);
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BOOST_REQUIRE(verifier.VerifyMessage(m.data(), m.size(), sigppraw.data(), 64));
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// BOOST_REQUIRE(crypto::verify(key.pub(), sigppraw, bytesConstRef(&m)));
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BOOST_REQUIRE(dev::verify(key.pub(), sigppraw, hm));
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// sign with cryptopp, verify, recover w/sec256lib
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Signature seclibsig(dev::sign(key.sec(), hm));
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BOOST_REQUIRE(verifier.VerifyMessage(m.data(), m.size(), seclibsig.data(), 64));
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// BOOST_REQUIRE(crypto::verify(key.pub(), seclibsig, bytesConstRef(&m)));
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BOOST_REQUIRE(dev::verify(key.pub(), seclibsig, hm));
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BOOST_REQUIRE(dev::recover(seclibsig, hm) == key.pub());
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// sign with cryptopp (w/hash filter?), verify with cryptopp
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bytes sigppb(signer.MaxSignatureLength());
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size_t ssz = signer.SignMessage(s_rng, m.data(), m.size(), sigppb.data());
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Signature sigpp;
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memcpy(sigpp.data(), sigppb.data(), 64);
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BOOST_REQUIRE(verifier.VerifyMessage(m.data(), m.size(), sigppb.data(), ssz));
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// BOOST_REQUIRE(crypto::verify(key.pub(), sigpp, bytesConstRef(&m)));
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BOOST_REQUIRE(dev::verify(key.pub(), sigpp, hm));
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// sign with cryptopp and stringsource hash filter
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string sigstr;
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StringSource ssrc(asString(m), true, new SignerFilter(s_rng, signer, new StringSink(sigstr)));
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FixedHash<sizeof(Signature)> retsig((byte const*)sigstr.data(), Signature::ConstructFromPointer);
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BOOST_REQUIRE(verifier.VerifyMessage(m.data(), m.size(), retsig.data(), 64));
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// BOOST_REQUIRE(crypto::verify(key.pub(), retsig, bytesConstRef(&m)));
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BOOST_REQUIRE(dev::verify(key.pub(), retsig, hm));
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/// verification w/sec256lib
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// requires public key and sig in standard format
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byte encpub[65] = {0x04};
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memcpy(&encpub[1], key.pub().data(), 64);
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byte dersig[72];
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// verify sec256lib sig w/sec256lib
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size_t cssz = DSAConvertSignatureFormat(dersig, 72, DSA_DER, seclibsig.data(), 64, DSA_P1363);
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BOOST_CHECK(cssz <= 72);
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BOOST_REQUIRE(1 == secp256k1_ecdsa_verify(hm.data(), sizeof(hm), dersig, cssz, encpub, 65));
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// verify cryptopp-raw sig w/sec256lib
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cssz = DSAConvertSignatureFormat(dersig, 72, DSA_DER, sigppraw.data(), 64, DSA_P1363);
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BOOST_CHECK(cssz <= 72);
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BOOST_REQUIRE(1 == secp256k1_ecdsa_verify(hm.data(), sizeof(hm), dersig, cssz, encpub, 65));
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// verify cryptopp sig w/sec256lib
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cssz = DSAConvertSignatureFormat(dersig, 72, DSA_DER, sigppb.data(), 64, DSA_P1363);
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BOOST_CHECK(cssz <= 72);
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BOOST_REQUIRE(1 == secp256k1_ecdsa_verify(hm.data(), sizeof(hm), dersig, cssz, encpub, 65));
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}
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}
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BOOST_AUTO_TEST_CASE(ecies_eckeypair)
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{
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KeyPair k = KeyPair::create();
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string message("Now is the time for all good persons to come to the aid of humanity.");
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string original = message;
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bytes b = asBytes(message);
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s_secp256k1.encrypt(k.pub(), b);
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BOOST_REQUIRE(b != asBytes(original));
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s_secp256k1.decrypt(k.sec(), b);
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BOOST_REQUIRE(b == asBytes(original));
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}
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BOOST_AUTO_TEST_CASE(ecdh)
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{
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cnote << "Testing ecdh...";
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ECDH<ECP>::Domain dhLocal(s_curveOID);
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SecByteBlock privLocal(dhLocal.PrivateKeyLength());
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SecByteBlock pubLocal(dhLocal.PublicKeyLength());
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dhLocal.GenerateKeyPair(s_rng, privLocal, pubLocal);
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ECDH<ECP>::Domain dhRemote(s_curveOID);
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SecByteBlock privRemote(dhRemote.PrivateKeyLength());
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SecByteBlock pubRemote(dhRemote.PublicKeyLength());
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dhRemote.GenerateKeyPair(s_rng, privRemote, pubRemote);
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assert(dhLocal.AgreedValueLength() == dhRemote.AgreedValueLength());
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// local: send public to remote; remote: send public to local
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// Local
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SecByteBlock sharedLocal(dhLocal.AgreedValueLength());
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assert(dhLocal.Agree(sharedLocal, privLocal, pubRemote));
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// Remote
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SecByteBlock sharedRemote(dhRemote.AgreedValueLength());
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assert(dhRemote.Agree(sharedRemote, privRemote, pubLocal));
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// Test
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Integer ssLocal, ssRemote;
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ssLocal.Decode(sharedLocal.BytePtr(), sharedLocal.SizeInBytes());
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ssRemote.Decode(sharedRemote.BytePtr(), sharedRemote.SizeInBytes());
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assert(ssLocal != 0);
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assert(ssLocal == ssRemote);
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// Now use our keys
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KeyPair a = KeyPair::create();
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byte puba[65] = {0x04};
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memcpy(&puba[1], a.pub().data(), 64);
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KeyPair b = KeyPair::create();
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byte pubb[65] = {0x04};
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memcpy(&pubb[1], b.pub().data(), 64);
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ECDH<ECP>::Domain dhA(s_curveOID);
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Secret shared;
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BOOST_REQUIRE(dhA.Agree(shared.data(), a.sec().data(), pubb));
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BOOST_REQUIRE(shared);
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}
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BOOST_AUTO_TEST_CASE(ecdhe)
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{
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cnote << "Testing ecdhe...";
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ECDHE a, b;
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BOOST_CHECK_NE(a.pubkey(), b.pubkey());
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ECDHE local;
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ECDHE remote;
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// local tx pubkey -> remote
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Secret sremote;
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remote.agree(local.pubkey(), sremote);
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// remote tx pbukey -> local
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Secret slocal;
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local.agree(remote.pubkey(), slocal);
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BOOST_REQUIRE(sremote);
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BOOST_REQUIRE(slocal);
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BOOST_REQUIRE_EQUAL(sremote, slocal);
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}
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BOOST_AUTO_TEST_CASE(ecdhe_aes128_ctr_sha3mac)
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{
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// New connections require new ECDH keypairs
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// Every new connection requires a new EC keypair
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// Every new trust requires a new EC keypair
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// All connections should share seed for PRF (or PRNG) for nonces
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}
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BOOST_AUTO_TEST_CASE(cryptopp_aes128_ctr)
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{
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const int aesKeyLen = 16;
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BOOST_REQUIRE(sizeof(char) == sizeof(byte));
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// generate test key
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AutoSeededRandomPool rng;
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SecByteBlock key(0x00, aesKeyLen);
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rng.GenerateBlock(key, key.size());
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// cryptopp uses IV as nonce/counter which is same as using nonce w/0 ctr
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FixedHash<AES::BLOCKSIZE> ctr;
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rng.GenerateBlock(ctr.data(), sizeof(ctr));
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// used for decrypt
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FixedHash<AES::BLOCKSIZE> ctrcopy(ctr);
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string text = "Now is the time for all good persons to come to the aid of humanity.";
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unsigned char const* in = (unsigned char*)&text[0];
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unsigned char* out = (unsigned char*)&text[0];
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string original = text;
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string doublespeak = text + text;
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string cipherCopy;
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try
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{
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CTR_Mode<AES>::Encryption e;
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e.SetKeyWithIV(key, key.size(), ctr.data());
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// 68 % 255 should be difference of counter
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e.ProcessData(out, in, text.size());
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ctr = h128(u128(ctr) + text.size() % 16);
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BOOST_REQUIRE(text != original);
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cipherCopy = text;
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}
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catch(CryptoPP::Exception& e)
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{
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cerr << e.what() << endl;
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}
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try
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{
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CTR_Mode< AES >::Decryption d;
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d.SetKeyWithIV(key, key.size(), ctrcopy.data());
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d.ProcessData(out, in, text.size());
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BOOST_REQUIRE(text == original);
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}
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catch(CryptoPP::Exception& e)
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{
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cerr << e.what() << endl;
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}
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// reencrypt ciphertext...
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try
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{
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BOOST_REQUIRE(cipherCopy != text);
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in = (unsigned char*)&cipherCopy[0];
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out = (unsigned char*)&cipherCopy[0];
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CTR_Mode<AES>::Encryption e;
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e.SetKeyWithIV(key, key.size(), ctrcopy.data());
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e.ProcessData(out, in, text.size());
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// yep, ctr mode.
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BOOST_REQUIRE(cipherCopy == original);
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}
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catch(CryptoPP::Exception& e)
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{
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cerr << e.what() << endl;
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}
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}
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BOOST_AUTO_TEST_CASE(cryptopp_aes128_cbc)
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{
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const int aesKeyLen = 16;
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BOOST_REQUIRE(sizeof(char) == sizeof(byte));
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AutoSeededRandomPool rng;
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SecByteBlock key(0x00, aesKeyLen);
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rng.GenerateBlock(key, key.size());
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// Generate random IV
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byte iv[AES::BLOCKSIZE];
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rng.GenerateBlock(iv, AES::BLOCKSIZE);
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string string128("AAAAAAAAAAAAAAAA");
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string plainOriginal = string128;
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CryptoPP::CBC_Mode<Rijndael>::Encryption cbcEncryption(key, key.size(), iv);
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cbcEncryption.ProcessData((byte*)&string128[0], (byte*)&string128[0], string128.size());
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BOOST_REQUIRE(string128 != plainOriginal);
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CBC_Mode<Rijndael>::Decryption cbcDecryption(key, key.size(), iv);
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cbcDecryption.ProcessData((byte*)&string128[0], (byte*)&string128[0], string128.size());
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BOOST_REQUIRE(plainOriginal == string128);
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// plaintext whose size isn't divisible by block size must use stream filter for padding
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string string192("AAAAAAAAAAAAAAAABBBBBBBB");
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plainOriginal = string192;
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string cipher;
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StreamTransformationFilter* aesStream = new StreamTransformationFilter(cbcEncryption, new StringSink(cipher));
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StringSource source(string192, true, aesStream);
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BOOST_REQUIRE(cipher.size() == 32);
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cbcDecryption.ProcessData((byte*)&cipher[0], (byte*)&string192[0], cipher.size());
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BOOST_REQUIRE(string192 == plainOriginal);
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}
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BOOST_AUTO_TEST_CASE(eth_keypairs)
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{
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cnote << "Testing Crypto...";
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secp256k1_start();
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KeyPair p(Secret(fromHex("3ecb44df2159c26e0f995712d4f39b6f6e499b40749b1cf1246c37f9516cb6a4")));
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BOOST_REQUIRE(p.pub() == Public(fromHex("97466f2b32bc3bb76d4741ae51cd1d8578b48d3f1e68da206d47321aec267ce78549b514e4453d74ef11b0cd5e4e4c364effddac8b51bcfc8de80682f952896f")));
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BOOST_REQUIRE(p.address() == Address(fromHex("8a40bfaa73256b60764c1bf40675a99083efb075")));
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{
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eth::Transaction t(1000, 0, 0, h160(fromHex("944400f4b88ac9589a0f17ed4671da26bddb668b")), bytes(), 0, p.secret());
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auto rlp = t.rlp(eth::WithoutSignature);
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cnote << RLP(rlp);
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cnote << toHex(rlp);
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cnote << t.sha3(eth::WithoutSignature);
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rlp = t.rlp(eth::WithSignature);
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cnote << RLP(rlp);
|
|
cnote << toHex(rlp);
|
|
cnote << t.sha3(eth::WithSignature);
|
|
BOOST_REQUIRE(t.sender() == p.address());
|
|
}
|
|
|
|
}
|
|
|
|
|
|
int cryptoTest()
|
|
{
|
|
cnote << "Testing Crypto...";
|
|
secp256k1_start();
|
|
|
|
KeyPair p(Secret(fromHex("3ecb44df2159c26e0f995712d4f39b6f6e499b40749b1cf1246c37f9516cb6a4")));
|
|
BOOST_REQUIRE(p.pub() == Public(fromHex("97466f2b32bc3bb76d4741ae51cd1d8578b48d3f1e68da206d47321aec267ce78549b514e4453d74ef11b0cd5e4e4c364effddac8b51bcfc8de80682f952896f")));
|
|
BOOST_REQUIRE(p.address() == Address(fromHex("8a40bfaa73256b60764c1bf40675a99083efb075")));
|
|
{
|
|
eth::Transaction t(1000, 0, 0, h160(fromHex("944400f4b88ac9589a0f17ed4671da26bddb668b")), bytes(), 0, p.secret());
|
|
auto rlp = t.rlp(eth::WithoutSignature);
|
|
cnote << RLP(rlp);
|
|
cnote << toHex(rlp);
|
|
cnote << t.sha3(eth::WithoutSignature);
|
|
rlp = t.rlp(eth::WithSignature);
|
|
cnote << RLP(rlp);
|
|
cnote << toHex(rlp);
|
|
cnote << t.sha3(eth::WithSignature);
|
|
assert(t.sender() == p.address());
|
|
}
|
|
|
|
|
|
#if 0
|
|
// Test transaction.
|
|
bytes tx = fromHex("88005401010101010101010101010101010101010101011f0de0b6b3a76400001ce8d4a5100080181c373130a009ba1f10285d4e659568bfcfec85067855c5a3c150100815dad4ef98fd37cf0593828c89db94bd6c64e210a32ef8956eaa81ea9307194996a3b879441f5d");
|
|
cout << "TX: " << RLP(tx) << endl;
|
|
|
|
Transaction t2(tx);
|
|
cout << "SENDER: " << hex << t2.sender() << dec << endl;
|
|
|
|
secp256k1_start();
|
|
|
|
Transaction t;
|
|
t.nonce = 0;
|
|
t.value = 1; // 1 wei.
|
|
t.type = eth::Transaction::MessageCall;
|
|
t.receiveAddress = toAddress(sha3("123"));
|
|
|
|
bytes sig64 = toBigEndian(t.vrs.r) + toBigEndian(t.vrs.s);
|
|
cout << "SIG: " << sig64.size() << " " << toHex(sig64) << " " << t.vrs.v << endl;
|
|
|
|
auto msg = t.rlp(false);
|
|
cout << "TX w/o SIG: " << RLP(msg) << endl;
|
|
cout << "RLP(TX w/o SIG): " << toHex(t.rlp(false)) << endl;
|
|
std::string hmsg = sha3(t.rlp(false), false);
|
|
cout << "SHA256(RLP(TX w/o SIG)): 0x" << toHex(hmsg) << endl;
|
|
|
|
bytes privkey = sha3Bytes("123");
|
|
|
|
{
|
|
bytes pubkey(65);
|
|
int pubkeylen = 65;
|
|
|
|
int ret = secp256k1_ecdsa_seckey_verify(privkey.data());
|
|
cout << "SEC: " << dec << ret << " " << toHex(privkey) << endl;
|
|
|
|
ret = secp256k1_ecdsa_pubkey_create(pubkey.data(), &pubkeylen, privkey.data(), 1);
|
|
pubkey.resize(pubkeylen);
|
|
int good = secp256k1_ecdsa_pubkey_verify(pubkey.data(), (int)pubkey.size());
|
|
cout << "PUB: " << dec << ret << " " << pubkeylen << " " << toHex(pubkey) << (good ? " GOOD" : " BAD") << endl;
|
|
}
|
|
|
|
// Test roundtrip...
|
|
{
|
|
bytes sig(64);
|
|
u256 nonce = 0;
|
|
int v = 0;
|
|
cout << toHex(hmsg) << endl;
|
|
cout << toHex(privkey) << endl;
|
|
cout << hex << nonce << dec << endl;
|
|
int ret = secp256k1_ecdsa_sign_compact((byte const*)hmsg.data(), (int)hmsg.size(), sig.data(), privkey.data(), (byte const*)&nonce, &v);
|
|
cout << "MYSIG: " << dec << ret << " " << sig.size() << " " << toHex(sig) << " " << v << endl;
|
|
|
|
bytes pubkey(65);
|
|
int pubkeylen = 65;
|
|
ret = secp256k1_ecdsa_recover_compact((byte const*)hmsg.data(), (int)hmsg.size(), (byte const*)sig.data(), pubkey.data(), &pubkeylen, 0, v);
|
|
pubkey.resize(pubkeylen);
|
|
cout << "MYREC: " << dec << ret << " " << pubkeylen << " " << toHex(pubkey) << endl;
|
|
}
|
|
|
|
{
|
|
bytes pubkey(65);
|
|
int pubkeylen = 65;
|
|
int ret = secp256k1_ecdsa_recover_compact((byte const*)hmsg.data(), (int)hmsg.size(), (byte const*)sig64.data(), pubkey.data(), &pubkeylen, 0, (int)t.vrs.v - 27);
|
|
pubkey.resize(pubkeylen);
|
|
cout << "RECPUB: " << dec << ret << " " << pubkeylen << " " << toHex(pubkey) << endl;
|
|
cout << "SENDER: " << hex << toAddress(dev::sha3(bytesConstRef(&pubkey).cropped(1))) << dec << endl;
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
BOOST_AUTO_TEST_SUITE_END()
|
|
|
|
|